Hard x-ray quantitative non-interferometric phase-contrast microscopy

被引:109
作者
Gureyev, TE
Raven, C
Snigirev, A
Snigireva, I
Wilkins, SW
机构
[1] CSIRO, Clayton, Vic 3169, Australia
[2] European Synchrotron Radiat Facil, F-38043 Grenoble, France
关键词
D O I
10.1088/0022-3727/32/5/010
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report the results of quantitative phase-contrast imaging experiments using synchrotron radiation, in-line imaging geometry and a non-interferometric phase retrieval technique. This quantitative imaging method is fast, simple, robust, does not require sophisticated x-ray optical elements and can potentially provide submicron spatial resolution over a field of view of the order of centimetres. In the present experiment a spatial resolution of approximately 0.8 mu m has been achieved in images of a polystyrene sphere using 19.6 keV x-rays. We demonstrate that appropriate processing of phase-contrast images obtained in the in-line geometry can reveal important new information about the internal structure of weakly absorbing organic samples. We believe that this technique will also be useful in phase-contrast tomography.
引用
收藏
页码:563 / 567
页数:5
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